Page 19 and 20 of the HPX Journal V1N4.
Has a space shuttle landing simulator for the HP41.
Questions:
1) Steps 109 and 155 are listed as "EXP". The other steps in the listing are fairly evident, but this one I'm not sure about. Is this "e^x"? or "10^x"? or ? The program has number entry lines where the EEX key is used to enter 1E3 for example. The program has -15 in the X register prior to this step.
2) More general question, I guess. Anyone ever try this? :-)